Decorating apparatus



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Nov. 4, 1941. A. s. JACKSON I DECORATING APPARATUS 6 Sheets-Sheef 6Filed Nov. 8, 1939 ZDTf' Iii G INVENTOR.

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Patented. Nov. 4, 1941 UNITED STATES PATENT" OFFICE,

DECORATING APPARATUS Albert S. Jackson, Wood River, 111., assignor toCompany, a corporation Owens-Illinois Glass of Ohio Application November8, 1939, Serial No. 303,424

Claims.

My invention relates to-apparatus for decorat-' ing the surfaces ofbottles and other articles and color designs or decorations by a screenprocess in which the coloring or decoratingmaterials are applied to thesurface of th article as by stencillingthrough a screen or the like.

An object of my invention is to provide an im-' proved apparatus whichis designed for simultaneously applying decorations to differentsurfaceportions of the article having different diameters, as, for example,the-body and shoulder or neck portions of a bottle of conventional form.

A further object of the invention is to provide ,novel means to effectrolling contact between the article and the screens by which the latterare caused to advance simultaneously along the surfaces to be decoratedat dififerent rates, corresponding to the peripheral speeds at which therespectiv surfaces are being rotated.

A further feature of the invention relatesto adjusting andindicatingmechanisms by which the apparatus may be adjusted for operation with inits preferred form is adapted for applying riage and means forperiodically lifting and holding the squeegees in an inoperativeposition; and

Fig. 11 is a section at the line l|| I on Fig. 10, showing anelectromagnetic device for holding the decorating means in aninoperative position .when an empty cradle is presented at the decoingthe articles to positioning stations where they articles of difierentdimensions and by which the required adjustments may be made and deter-A further feature ofthe invention relates to novel mechanism forautomatically holding the decorating devices in an inoperative positionwhen an article is missing so that an empty cradie is presented atthedecorating station.

Other objects of the invention will appear herelnafter.

Referring'to the accompanying drawings:

Fig. 1 is a plan view of apparatus embodying the present invention; g

Fig. 2 is a front elevation of the same;

Fig. 3 is a sectional side elevation, the sectionbeing taken at adecorating station;

Fig. 4 is a fragmentary sectional elevation I showing the decoratingapparatus during a decorating operation;

- Fig. 5 is a similar view showing the apparatus adJusted for operationon a comparatively small article;

' Fig. 6 is a part sectional elevation of thedecorating devices andmanual means for lifting them to an inoperative position;

'7 is a fragmentary plan view of the mechanism shown in Fig. 6; a

Fig. 8 is a section at the line 88 of Fig. 6; Fig. 9 is a section on alarger scale at the line 9- 9 on ig. '1;

. :;.,Fig,.10 is a fragmentary sectional elevation showing a portion ofthe decorating screen car- 55 by step, thereby bringing the bottles, insucmined in advance of the decorating operations.

are first rotated to a predetermined position, therebydeterminingitheposition at which the decoration is applied; the articlesbeing thereafter rotated at a decorating station or stations during thedecorating operations. In said apparatus the decorations are applied tothe cylindrical body portion of the bottles.

The present invention is shown inan appa- "ratus which in many respectsis substantially identical with that disclosed in said copendingapplication. The present invention comprises modifications and additionsby which the shoulders of the bottles may be decorated at the same timeas'the body portions and to this end provides decorating'means to engagesimultaneously the body and shoulder surfaces of the rotating bottle Thedecorating screens move over said surfaces at speeds substantially equalto the peripheral speeds of the surfaces, said speeds being proportionalto the diameters' of the said body and shoulder respectively.

Referring particularly to Figs. 1, 2 and 3, the

apparatus comprises a framework 20 including a hollow base within whichis mounted a contin- ;,uously running electric motor 2| connectedthrough suitable driving means for operating the .various parts of theapparatus. The articles which are to be decorated, herein shown asbottles B of conventional form, are deposited on cradles 22 on anendless conveyor comprising parallel sprocket chains '23 trained oversprocket wheels at opposite ends of the conveyor frame 24 mountedon orforming a part ofthe framework 20. The conveyor is driven by the motor2i 4 through mechanism by which it is advanced step cession to theadjusting and decorating stations. These include a station C at whichthe bottles are rotatively adjusted preliminary to the decoratingoperation, and a decorating station D at which the color decorations areapplied.

The means for driving the cradle conveyor includes a shaft (Fig. 2)continuously driven by the motor 2| through suitable driving connections(not shown). has connected thereto a head 21 which may be adjustablelengthwise of the arm 25, said head carrying a cam roll running on astationary cam track 28. A connecting rod 29 connects the head 21 with aconnector frame 30 by which an operative connection with the cradleconveyor is effected. The construction is such that the conveyor isadvanced step by step, being held stationary during the operations ofadjusting and decorating the bottles. As the preferred means for drivingthe cradle conveyor is the same as that disclosed in the above mentionedPatent 2,231,535 and does not in itself form a part of the presentinvention, a. more detailed illustration thereof is not deemed necessaryherein.

The cradles 22 are supported on cross-bars 3i which are arranged atintervals along the conveyor and connected at their ends to the conveyorchains. Each cradle comprises a bar 32 overlying the supporting bar 3iand connected thereto by a pivot33 near the inner endof the cradle,

permitting the cradle to swing up and down for the purpose of receivingand discharging the bottles. The cradle also includes a bar 34 overlyingthe bar 32 and removably attached thereto, permitting thesubstitution ofother cradles corresponding to the size and shape of the particulararticle which is to be carried thereby.

The positioning means for holding and rotating the bottles to apredetermined position preliminary to the decorating operation will nowbe described. Mechanism for this purpose is illustrated particularlyasused at the station D. It is to be understood, however, that if desired,substantially identical mechanism may be provided at the station C forgiving the articles any further preliminary rotation that may be neededfor accurate adjustment, as more fully set forth in the aforementionedPatent 2,231,535. The mechanism for holding and rotating a bottle at thestation D comprises a chuck 35 for engaging the base of the bottle and aholding device 35 for holding the bottle against the chuck. .The holdingdevice includes a head chuck or center 31 carried on an arm 38 on aslide block 39 mounted to reciprocate in guides formed on an arm 40mounted on the conveyor frame 25 and projecting forwardly therefrom.

The mechanism for reciprocating the slide blocks at the stations C and Dincludes a cam 4| (Figs. 1 and 3) formed on the periphery of a cam disk42 carried on a shaft 55 by which the cam disk is rotated continuously.The shaft 43 .is driven from the motor 2 l the driving connectionsincluding a chain drive 54 and speed reduction gearing within a gear box45. The cm I actiiates a bell crank 45 (Fig. 1) connected through a rod41 (Figs. 1 and 2) to a rock arm 45 fixed to a rock shaft 59. The rockshaft operates through rock arms and links 5| (see Fig. 3) to reciprocate the slide blocks 35 and the head chucks 31 carried thereby.

When the cradle conveyor has been brought to rest after each stepmovement, the cam 4i operates the chucks to grip the bottles at thestations C and D. The chuck at the station A crank arm 25 on the shaft25 intermittently rotated by power supplied through the shaft 43operating through driving mechanism including bevel gears 52, a sprocketchain 53 and afriction clutch 54. The clutch comprises a clutch memberor disk continuously rotated by the chain 53 and loosely mounted on ashaft 55 carrying the chuck 35. The clutch' includes a friction diskfixed to the shaft 55 and movable into and out of driving contact withthe first mentioned clutch member by lengthwise move ment of theshaft55. The clutch is under the control of an electromagnet 55 which, whenenergized, operates through a bell crank 51 and a lever 58 to move theshaft 55 lengthwise and bring the clutch members into driving engagementwhereby the chuck and the bottle held thereby are rotated. When thebottle has been brought thus to the desired rotative position forreceiving the color decoration, the electromagnet is deenergized (bymeans not shown), thereby releasing the clutch and stopping rotation ofthe bottle. During this rotative adjustment of the battle the decoratingscreens are held in an inoperative position.

The decorating mechanism is supported on an I-beam positioned above andin rear of the cradle conveyor, said beam being supported on standards5| rising from a platform 52 mounted onthe framework 20. Thedecoratingmeans includes a screen 53 (see Figs. 1 and 4) herein referredto as the body screen, and the squeegee 54 cooperating therewith, fordecorating the cylindrical body surface of the bottle. The screen ismounted on a screen frame which may be of conventional construction. Ashoulder screen 55, mounted on a screen frame 61, and a cooperatingsqueegee 55 are provided for decorating the shoulder or neck portion ofthe bottle. The screen frame 55 is carried on arms 59 at opposite endsof said frame. The frame is adjustable forwardly and rearwardly in saidarms, having a slidable connection therewith. The connection betweeneach arm 89 and the screen frame (see Figs. '7 and Qlincludes a slideblock Ii formed with a guide rail 12 slidably mounted in the arm '59which comprises sections formed with a dove tailed groove to receive therail 12. A clamping bolt 13 clamps the slide block II in adjusted p051-tion. The screen frame also has an adjustable connection with the slideblock including an adlusting screw 14 journalled in the block andconnected to a tab I5 on the end of the screen frame. A wing nut 15clamps the tab to hold the frame in its adjusted position.

The arms 55 are formed at their rear ends with vertical extensions orbars 11 which aremovable up and down in guideways formed on supportingbrackets 15. The arms 55 with the extension bars 11 provide a carriagefor the screen which is vertically adjustable as hereinafter described.

The brackets 15' are secured to the under surface of a slide plate lldirectly beneath the I-beam 50' and extending lengthwise thereof. Theplate on the cam plate 42. A vertical i n is rock shaft ii journalled mhelarinm: M the ut.

form 82, carries a rock arm 82 atits lower end on which is a cam rollrunning on the cam 88. An arm 83 attached to the rock shaft 8| andextending forwardly therefrom is operatively connected to the slideplate 19 by means of a channel bar. 84 fixed to the lower side of theslide plate and extending horizontally at right angles to said plate. Anadjusting block 85 is adjustably mounted in a channel formed in-the arm83 for movement lengthwise .of said arm. 'Such a'djustment is efiectedbya screw 86 joumalled in the arm 83 and threaded through the block 85,

said screw being operated by a hand wheel 81.- The block 85 carries aroll 88 which runs in the channel'bar 84.

The cam .88 is so designed that themovement transmitted therefromthrough the rock shaft 8| and arm 83 will cause theslide plate 19 andscreen carried thereby to advance at the same surface speed as thecylindrical surface of the bottle B during the decorating operation. Itwill be noted that the means for rotating the. chuck and bottle areintereonnectedwith the means for reciprocating the decorating screen,the motion being transmitted to both said parts from the shaft 43. Asthe surface speed at which the bottle is rotated 'is proportional to thediameter of the bottle, the speed of the screen must be correspondinglyadjusted when bottles of a different diameter are to be decorated,suchadjustment being effected by rotating thelhand wheel 81 and] therebyadjusting theeffective length of the rock arm 83.

The shoulder screen frame 61 is carried at the forward ends of arms 98formed on and projecting forward from vertical -rack bars 9|, said armsand rack bar's-providing a carriage for the screen frame. The arms 98 asshown compriseiele scopic sections permitting the screen to be adjustedforwardly and rearwardly, the position of t adjustment being indicatedby a scale 98 v(F'ig'.

6). The rack bars 9| are mounted to slide up and down in 'guidewaysformed in vertical posts or standards 92 integral with or attached tothe ends of horizontal frame pieces or bars 93. The bars 93 slidablyembrace the upper and lower sides of a channel-shaped guide bar 94extending lengthwise of the machine and connected as by means of rivets95 (Fig. 2) to the vertical bars 11 of the body screen carriage. .Thereis thus provided a sliding connection between the posts 92 and the bar98 permitting the shoulder screen to be reciprocated horizontallyrelative to the body screen. A tubular rod 98 extends horizontallybetween the rack bars 9| and is rigidly connected at its ends to saidbars.

The screen frames are adjustable up and down by means of a hand wheel9"! on an adjusting said-rack bar. The up and down movement of .saidrack bar is transmitted to the other rack bar through a shaft I82 (seeFigs. 1 and 4) formed with rack teeth engaging said rack bars. Theshoulder screen is caused to travel along .the shoulder of the bottleduring the decorating operation by motion-transmitting mechanismsubstantially like thatabove described in connection with the bodyscreen. Such mechanism for drivingthe shoulder screen includes an armthe I-beam 88 for reciprocation lengthwise thereof. The channel bar I88is fixed to the plate I84 and has slidably supported therein a connectorblock I88, pivotally-connected. to a slide block I81 adjustablelengthwise in the arm I83 by means of an adjusting screw I88 and handwheel I89. The.

speed of the shoulder screen is adjusted relative to that of the bodyscreen by means ofthe hand wheel I89, to correspond to the diameter ofthe surface to which the shoulder decoration is being applied.

screw 98 threaded through an adjusting block 99 Having a fixedconnection with the frame bars 93. The lower end of the screw 98 bearson the forward end of a channel bar I88 which thus supports the weightof the screen frames. By I rotating the hand wheel 91 in one directionthe screen frames are adjusted upwardly as may be (6 required fordecorating a bottle of comparatively large diameter-(Fig. 4). Rotationof the hand wheel'91 in the opposite direction permits the frames tomove. downward by gravity, thereby adlusting them for a comparativelysmall bottle (Fig. 5). The shoulder screen frame isadjustable relativeto the body screen frame by means 'of an adjusting screw I8I (Fig. 2)whichQhas a threaded-connection with one of the rack bars 9l so thatrotation of said screw raises or lowers Referring'to Fig. l0,-a scaleplate II8 mounted I on the beam 68 is provided with scale markings alongits upper margin over which is a pointer III carried on the bar 94. Theposition of the pointer III on the scale when the shoulder screen framehas been moved to the limit of its movement in either directionindicates the shoulder diameter for which the mechanism is set.-- Forexample, if itis desired to decorate a' compare tively large bottle, asshown in Fig: 4, the mean. diameter of the shoulder portion to which thedecoration is to be applied being, for example, two and three-fourthsinches. the hand wheel I89 is adjusted to bring the pointer III totheposition shown indicating a shoulder diametr of two and three-fourthsinches. If abottle of.

small shoulder diameter, for example, one and one-fourth inches, is tobe decorated, adjustment will be made to bring the' pointer III to thebroken line position Ili indicating one and onefourth inches diameter.The scale plate is provided along its lower margin with scale markingscooperating with a pointer II2 for indicating adjustments for the bodyscreen frame. These scale markings are likewise calibrated to indicatethe body diameterin inches. The point- .er 2 is carried with thebodyscreen frame."

It is sometimes [desirable to lift the screens and hold them in anelevated position. Mecha nism for this purp se is illustrated in Figs.1.2-, 6, 7 and 8. .Such mechanism includes a hand lever II3 mounted toswing about the axis of a shaft II4 journalled' in a bearing sleeve H5formed on a bracket H6 attached to the bracket 18. Keyed to the innerend of the shaft Ill ,is

a gear wheel II1 which meshes with a pinion H8 on one errd of a shaft 9-Pinions I28 also secured to'the shaft 9, engage rack teeth I2I (Fig. 6)formed on the bars 11.

Mounted on the hand lever 3 for movement lengthwise thereof is a rod I22carrying at its inner end a head I23 normally'heldin its lowered.position under the tension'of a coil spring I2lmounted on said rod. Apawl |25 pivotally mounted on the lever-I I3 is adapted to engage aratchet wheel I26 on the shaftv IIL. A lug I21 on the head I23. carriesa stop screw I28 which engages, the pawl and normally holds it out ofcontact with theratchet wheeL. when the operator desiresto lift thescreen frames he grasps the handle of the lever H3 and a finger-piece Ition. The body squeegee 64 is also mounted for ad about a stationaryfulcrum I52. One levercarries a cam roll I53 running on a cam I33 forlifting the latter under the influence of I 75 on the rod I22 and pullssaid rod upward against the tension of the spring I24, thereby releasingthe pawl and permitting it to move into engagement with the ratchetunder the influence of a spring I29 (Fig. 6). He then swings the leverforward and downward to the broken line position (Fig. 6). This movementof the lever operates through the shaft II4, gears H1, H8, I20, and rackbars 11 to lift the sdreen frames. The hand lever is held in its forwardposition by means of a lug on the head I23 engaging a notch I30 (Fig. 6)formed in the bearing sleeve II5. The notch- I30 is comparativelyshallow so that the head I23 does not move inwardly a sufficientdistance to release the pawl I25. The screen frames are therefore heldin their lifted position.

The squeegees 64 and 68 are carried on a horizontally disposed frame orarm I3I (Figs. 1, 4 and 5) connected by a pivot pin I32 to a slide blockI33 mounted for vertical sliding movement in guideways formed in abracket I34 which is bolted to the I-beam 60.

Referring to Fig- 5, the shoulder screen frame 61 is loosely connectedby a pivot pin I35 t a vertically disposed arm I36. The screenframe mayhave a limited rocking movement about the lower pointed end I31 of thearm I36, permitting the frame to adjust itself to the particular angleof the surface which is being decorated, The arm I35 is fulcrumed at I38on a second arm which in turn is pivoted at I 39 to a verticallydisposed slide block I40 adjustable vup and down on the frame I3I, suchadjustment being effected by a hand operated screw MI. The slide I40 isalso adjustable lengthwise of the arm I3I and for this purpose ismounted in a slide block I42 slidable lengthwise on the arm I3I andclamped in adjusted position by a nut I43 (Fig. 4)., A coil spring I44mounted in the slide I40 serves to hold the squeegee downward with ayielding pressure against the screen during the decorating operajustmentlengthwise of the arm I3I and for vertical adjustment substantially inthe same manner as the shoulder squeegee. The squeegee frame, may beswung upward by hand about its pivot I32 to the broken line positionshown in Fig. 5 and held in such position by a dog I45 engaging a notchin a holding rack I 48. Said dog is carried by a rod I41 held in lockingposition by a spring I40 and adapted to be withdrawn by a handle I49.The arm I3I is also held in its lowered position by said dog I45engaging a lower notch in the rack I46.

Referringto Figs. 4 and 5 the slide I33 which carries the squeegee armhas a limited up and down movement in the bracket I34 as before notedand is yieldingly held in its lowered position by a coil spring I50.While held in this position the squeegees bear against the decoratingscreens and function in the usual manner to force the decoratingmaterial through the screens during the decorating operation. During theintervals between such operations the slide I 33 is held in an upwardposition in which the squeegees are lifted away from the screens.Referring to Fig. I the means for lifting the squeegee arm includes abell crank lever II- mounted to swing rm of the I04 mounted on the shaft25. The other arm of the bell crank lever projects beneath the slide Ifan empty cradle is presented at the decorating station the squeegee armis automatically retained in its lifted position during the decoratingperiod. Means for this purpose comprises an electromagnet I (Fig. 11),the solenoid of which is connected to a stop block I56 slidable in asupporting bracket I51 on which the electromagnet is mounted. When themagnet is energized the stop block I 56 is moved to the right as shownin full lines in Fig. 11 in which position it engages beneath a lug I58on the bell crank I 5|, thereby holding the squeegee arm in its liftedposition. The electromagnet remains deenergized during normal operationsand is held in the retracted position out of the path of the bell crankby a coil spring I59. The electromagnet is under the control of a switchmechanism within a switch box I60 (Fig. 3). This comprises a switchoperated by the. head chuck 31 (as more fully set forth in saidcopending application) to close the switch and actuate the holdingdevice (Fig. 11) when an empty cradle is presented at the decoratingstation.

Modifications may be resorted to within the spirit and scope of myinvention.

I claim:

1. Apparatus for decorating a round bottle or the like comprising achuck for holding the bottle, a motor, driving mechanism by which motionis transmitted from the motor to the chuck for rotating the latter,decorating devices for applying decorations to the cylindrical body andthe shoulder of the bottle respectively, means for causing saiddecorating devices to travel in rolling contact with the rotatingbottle, comprising a cam driven by the motor, a rock shaft actuated bysaid cam, rock arms connected to said rock sh'aft, reciprocatingelements carrying said decorating devices respectively, and operatingconnections between said rock arms and said elements for reciprocatingthe latter at speeds corresponding to the peripheral speeds of said bodyand shoulder surfaces.

2. Apparatus for decorating a round bottle or the like comprising achuck for holding the bottle, a motor, driving mechanism by which motionis, transmitted from the motor to the chuck for rotating the latter,decorating devices for applying decorations to the cylindrical body andthe shoulder of the bottle respectively, means for causing saiddecorating devices to travel in rolling contact with the rotatingbottle, comprising a cam driven by the motor, a rock shaft actuated bysaid cam, rock arms connected to said rock shaft, reciprocating elementscarrying said decorating devices respectively, operating connectionsbetween said rock arms and said elements for reciprocating the latter atspeeds corresponding to the peripheralspeeds of said body and. shouldersurfaces, and adjusting means individual to said rock arms for adjustingthe effective length of said arms and thereby adjusting the speed atwhichsaid elements are driven to correspond to the diameters of thesurfaces to be decorated.

3. Apparatus for decorating bottles or the like comprising a chuck forholding the bottles, a motor, driving connections between the motor andsaid chuck, decorating devices each comprising a screen frame andscreen, one of said screens positioned to engage the cylindrical bodysurface of the bottle, the other positioned to engage the shouldersurface of the bottle, and means for reciprocating said frames andcausing the screens to advance while in rolling contact with the botandsaid chuck, decoratingdevices each comprising a screen frame and screen,one of said screens positioned to engage the cylindrical body surface ofthe bottle, the other positioned to engage the shoulder surface of thebottle, and means for reciprocating said frames and causing the screensto advance while in rolling contact with the bot-. tle 'at speedscorresponding to the peripheral speeds of the said surfaces, said meansfor advancing the screens comprising a cam driven by said motor, a rockshaft rocked by said cam, rock arms connected to the rock shaft, slideplates connected respectively to the screen frames, driving elementsconnected to said rock arms and having driving connections respectivelywith said slide plates, and means for adjusting said driving elementslengthwise of said arms and. thereby adjusting the speeds at which saidslide plates are moved.

5. Apparatus for decorating bottles or thelike comprising a, chuck forholding the bottles, a motor, driving connections between the motor andsaid chuck, decorating devices each comprisin a screen frame and screen,one of said screens positioned to engage the cylindrical body surfacebination, a squeegee, a support on which the of the bottle, the otherpositioned to engage the shoulder surface of the bottle, means forreciprocating said frames and causing the screens to advance While inrolling contact with the bottle at speeds corresponding to theperipheral. speeds of the said surfaces, said means for advancing thescreens comprising a cam driven by said motor, a rock shaft rocked bysaid cam, rock arms connected to the rock shaft, slide plates connectedrespectively to the screen frames, driving elements connected to saidrock arms and having driving connections respectively with said slideplates, and means for adjusting said driving elements lengthwise of saidarms and tliereby adjusting the speeds at which said slide plates aremoved, and indicating means to indicate adlustments corresponding tothediameters of thebottie at the surfaces to be decorated. i

6. The combination of a decorating screen, a

carriage on which the screen issupported, meansfor reciprocating thecarriage, and carriage lifting mechanism mounted to reciprocatewith thecarriage for manually lifting the carriage for actuating said stop.

and screen and holding them in an inoperative position, said mechanismincluding a hand lever, a gear train operatively connecting the lever tothe carriage, and a locking device to hold the carriage in its liftedposition.

7. The combination of a decorating screen, a carriage on which thescreen is supported, means for reciprocating the carriage, and meansmounted to reciprocate with the carriage for,

manually lifting the carriage and screen and holding them in aninoperative position, said lifting and holding means including a handlever, a pawl and ratchet wheel actuated by said lever,

gearing including a shaft rotated by the pawl and ratchet wheel anddriving connections between said shaft and the carriage, including avertical rack connected to the carriage and a pinion driving said rack.-

v8. Decorating apparatus comprising, incombination, a squeegee, asupport on which the squeegee is mounted, automatic means for loweringand lifting said support and squeegee for moving the squeegee into and.out of operative relation to an article to be decorated, a stop movableinto position to prevent the lowering of the squeegee, and meansoperable automatically in the absence of an article from the decoratingposition to move the stop intosaid posi- 1 tion.

9. Decorating apparatus comprising, in comsqueegee is mounted, automaticmeans for lowering and lifting said support and squeegee'for moving thesqueegee into and out of operative relation to an article to bedecorated, and automatic means to prevent the lowering of the squeegeein the absence of an article from the decorating position, said liftingmeans including a lifting arm, said preventing means comprising a stopmovable into and out of the path of the lifting arm, anelectro-responsive meanscontrolled by an article at the decoratingstation 10. Decorating apparatus comprising a squeegee, a support onwhich the squeegee is mounted,

means for bringing articles in succession to a decorating station withthe article positioned beneath the squeegee, automatic means forperiodically lifting said support and the squee gee to an inoperativeposition including a cam, a lever actuated by the cam and comprising anarm projecting into the path of the squeegee support, a stop movableinto and out of a holding position beneath said arm in which it holdsthe squeegee lifted out of operative posi-- 'tion, andelectro-responsive means for moving said stop into operative -positionupon failure of an article'to be presented at the decorating station. I

ALBERT S. JACKSON.

